Swimming upstream
Subtitle: the endangered fish of the Colorado River
Contributors: U.S. Fish and Wildlife Service
Publisher: U.S. Fish and Wildlife Service
Published: 1993
Place of publication: [Denver, Colo.?
Language: eng
Subjects: Rare fishes -- Colorado River Watershed (Colo.-Mexico); Endangered species -- Colorado River Watershed (Colo.-Mexico); Fish populations -- Colorado River Watershed (Colo.-Mexico)
Notes: Shipping list no.: 93-0654-P